Methodology effects on determining the energy concentration and the apparent total tract digestibility of components in diets fed to growing pigs

文献类型： 外文期刊

第一作者： Ma, Xiaokang

作者： Ma, Xiaokang;Lai, Changhua;Zhao, Jinbiao;Zhang, Shuai;Li, Ping;Jaworski, Neil William;Stein, Hans-Henrik

作者机构：

关键词： Barrows; Digestibility; Drying Methods; Index Marker; Total Collection

期刊名称：ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES （ 影响因子：2.509； 五年影响因子：2.604 ）

ISSN： 1011-2367

年卷期： 2018 年 31 卷 8 期

页码：

收录情况： SCI

摘要： Objective: An experiment was conducted to investigate the effects of different diet formulations: F1 (Two complicated basal diets containing different crude protein levels plus tested feedstuff) vs F2 (A simple corn soybean meal [SBM] basal diet plus tested feedstuff) combined with total collection (TC) or chromic oxide (Cr2O3) marker or acid -insoluble ash (AIA) marker method, and freeze-dry or oven -dry (OD) technique on estimation of nutrient digestibility in diets fed to growing pigs. Methods: In F1, twelve barrows were allocated to two 6x4 Youden Squares. he treatment diets included a high protein basal (HPB) diet, a low protein basal (LPB) diet, a corn diet and a wheat bran (WB) diet formulated based on the HPB diet, and a SBM diet and a rapeseed meal (RSM) diet formulated based on the LPB diet. In F2, eight barrows were allocated to two 4x4 Latin Squares. The treatment diets included a corn basal diet, a SBM basal diet formulated based on the corn diet, and a WB diet and a RSM diet formulated based on the SBM diet. Results: Concentration of digestible (DL) and metabolizable energy (ME), and the apparent total tract digestibility of gross energy, ash, neutral detergent fibre, and acid detergent fibre determined by Crp, marker method were greater than those determined by TC and AIA marker methods in HPB, LPB, and RSM diets formulated by [Ti and in corn diet formulated by F2 (p<0.05). The DE values in WB and both DL and ME values in SBM and RSM estimated using F I were greater than those estimated using F2 (p<0.05). Conclusion: From the accuracy aspect, the AIA marker or TC method combined with OD technique is recommended for determining the energy concentration and nutrient digestibility of components in diets fed to growing pigs.

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